Hey John,

Please paste a full UNALTERED sip trace into a gist (gist.github.com) from the proxy servers perspective and provide a link so that we can see what comes in, and what goes out from both sides.

EG: ngrep -qtd any -W byline port 5060

This will show us the traffic that is leaving the proxy destined for the Freeswitch box, and what the freeswitch box sends back.

Also - you can look in your browsers console log and provide the SIP trace from there in a seperate gist, so that we can see what opensips sends back up to your browser.

-Eric

Am I using correct sip.js example? I copied it to my server and accessing it using https: (used letsencrypt)

On Thu, Jun 23, 2016 at 7:58 PM, Eric Tamme <[email protected] <mailto:[email protected]>> wrote:

    1. I would suggest using SIP.js - https://github.com/onsip/SIP.js
    it is a much more active project that sipml5.

    2. Im guessing that you are not properly passing flags to
    RTPEngine.  If you want to have DTLS-SRTP between the browser, and
    plain RTP/AVP between RTPEngine and freeswitch, you need to
    "offer" rtp/avp to freeswitch, and "answer" dtls-srtp back up to
    the browser.

    the offer to freeswitch would be:

             $var(rtpengine_flags) = "RTP/AVP replace-session-connection 
replace-origin ICE=remove";

    and the answer back up to the browswer would be:

             $var(rtpengine_flags) = "UDP/TLS/RTP/SAVPF ICE=force";


    -Eric



    On 06/23/2016 08:20 AM, John Nash wrote:
    I am following
    http://www.opensips.org/Documentation/Tutorials-WebSocket-2-2 and
    trying to test a call

    sipml5 ----------->Opensips + rtpengine --------> SIP end point
    (Freeswitch)

    But I do not have any audio on both sides. I see this error at
    rtpengine log "SRTP output wanted, but no crypto suite was
    negotiated"

    Anyone tested this scenario positive?


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